Experiments
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10 terms
Terms | Definitions |
|---|---|
 pretesting | the measurement of a dependent variable among subjects |
| post-testing | the re-measurement of a dependent variable among subjects after they've been exposed to an independent variable |
| experimental group | in experimentation, a group of subjects to whom an experimental stimulus is administered |
| control group | in experimentation, a group of subjects to whom no experimental stimulus is administered and who should resemble the experimental group in all other respects |
| double-blind experiment | an experimental design in which neither the subjects nor the experimenter know which is the experimental group and which is the control group |
| randomization | a technique for assigning subjects to experimental and control groups randomly |
| matching | in connection with experiments, the procedure whereby pairs of subjects are matched on the basis of their similarities on one or more variables, and one member of the pair is assigned to the experimental group and the other to the control group |
| field experiments | Studies that take place in a natural environment but the independent variable is still manipulated by the experimenter. |
| laboratory experiments | Studies that take place under controlled conditions where the researcher deliberately manipulates the independent variable to see its effect on a dependent variable. |
| web based experiments | includes o Volunteers who agree to participate from an online invitation |
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